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题型:单选题 题类:常考题 难易度:普通
—It ______ be Kate. She has been on business in Hong Kong.
You{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} {#blank#}4{#/blank#}three times a day.
I{#blank#}1{#/blank#} {#blank#}2{#/blank#}, but I {#blank#}3{#/blank#} {#blank#}4{#/blank#}the piano.
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